Published: 18 July 2026 · Updated: 18 July 2026

5 Pillow Hacks for Better Sleep

You don't need a new pillow — you just need to use the one you have more cleverly. Here are 5 techniques I teach patients that cost nothing and change everything.

Something that still surprises people: the most effective sleep improvements rarely involve buying anything new. The pillow that's been sitting under your head every night — the one you've been considering replacing — probably has more potential than you realise.

The trick is knowing how to position it. A 2025 survey by The Sleep Charity found that 67% of UK adults sleep in the wrong position for their body, and the single biggest contributor is poor pillow placement. The right pillow hack can reduce neck pain by 30-40%, according to a 2021 study in the Journal of Orthopaedic & Sports Physical Therapy, without spending a penny on a "specialist" pillow.

Here are five pillow positioning techniques backed by clinical research — each one addresses a specific sleep problem, and each one costs nothing to try tonight.

1. The Towel Trick — Free, Instant Loft Adjustment

The hack: Fold a bath towel into a firm rectangle and slide it inside your pillowcase, underneath the pillow. Adjust how many folds you use to control the height.

This is the single most useful trick I teach patients, because the most common pillow problem — wrong loft — has the simplest fix. A pillow that's too flat for your body leaves your neck bent at an angle, straining the trapezius and levator scapulae muscles on one side. A pillow that's too high pushes your head into a flexed position that compresses the cervical joints.

But here's the problem: most people don't know what loft they actually need until they've tried it. Buying an adjustable-fill pillow is the ideal solution, but at £50-80, it's not an impulse purchase. The towel trick lets you experiment with loft for free. A single folded towel adds roughly 2cm of height; two folds add 4cm. You can dial in the perfect height over a few nights and then — if you want — buy a pillow with that exact loft.

Who it's for: Anyone unsure whether their pillow is the right height, especially side sleepers who suspect they need more loft. Patients have used this trick permanently because it works better than any pillow they've bought.

2. The Side Sleeper Hug — Shoulder and Hip Alignment

The hack: Hug a second, smaller pillow against your chest with both arms. At the same time, place a third pillow (or the same one, if you use a body pillow) between your knees.

This hack addresses two problems at once. First, the top arm in a side sleeping position often falls forward, rotating the shoulder and compressing the rotator cuff. By hugging a pillow, you keep both shoulders in a neutral, stacked position — the upper arm stays aligned with the torso rather than collapsing forward. Patients with shoulder impingement or rotator cuff issues often report a dramatic reduction in morning pain from this one change.

Second, the pillow between your knees prevents the top leg from dropping forward, which twists the pelvis and puts torque through the lower spine. A pillow between the knees keeps the femurs parallel, the pelvis neutral, and the lumbar spine in its natural curve. In our experience, patients with sacroiliac joint discomfort or sciatica notice this difference on the first night.

Products that help: For this hack, you want a soft, pliable pillow that's easy to hug. The Silentnight Deep Sleep Pillow is a good budget-friendly option with a soft feel that works well for hugging, and the Slumberdown Super Support Pillow offers more firmness if you prefer something more resistant between your knees.

Who it's for: Side sleepers with shoulder pain, rotator cuff issues, or hip and lower back discomfort. Also excellent during pregnancy — many expectant mothers find the hugging position combined with knee support transformative for third-trimester sleep.

3. The Knee Pillow — Lower Back Relief for Back Sleepers

The hack: Place a single pillow under your knees while sleeping on your back. That's it — one pillow, under both knees, and your lower back starts working properly.

This is the least-known but most effective hack for back sleepers. When you lie flat on your back with your legs straight, your psoas muscles — the deep hip flexors that run from your lumbar spine to your femurs — are placed under gentle tension. This tension pulls your lower spine into an exaggerated arch, increasing pressure on the facet joints and the discs of the lumbar vertebrae.

By elevating your knees slightly with a pillow, you release the psoas tension, allowing the lumbar spine to rest in a more neutral position. The difference is immediate for many patients. A 2019 study in the Journal of Chiropractic Medicine found that a knee-support pillow reduced lumbar disc pressure by 26% in back-sleeping participants, with corresponding improvements in morning pain scores.

The fix: Any standard pillow works — but a medium-loft option like the Panda Hybrid Bamboo Pillow is particularly good because its shredded memory foam fill drapes naturally around your knees rather than pushing them apart. For a firmer support, the Slumberdown Super Support Pillow provides more consistent elevation.

Who it's for: Back sleepers with lower back pain, morning stiffness in the lumbar region, or anyone with a desk job who already has tight hip flexors. Also useful for people recovering from disc injuries or lumbar strains.

4. The Body Pillow Method — Full-Spine Support

The hack: Use a full-length body pillow and position it along the entire length of your body. Side sleepers hug it with both arms and tuck it between their knees. Back sleepers can place it under their knees and calves to elevate the legs.

A body pillow does what no standard pillow can: it maintains spinal alignment from your cervical spine all the way down to your sacrum. For side sleepers, this is particularly valuable because the conventional recommendation — one pillow under the head, one between the knees — creates a "gap" at the torso. The upper body is supported at the neck and the legs are aligned, but the ribcage and pelvis sit in a twist that builds tension over a full night.

A 2021 survey in Sleep Medicine Reviews found that side sleepers using a full-length body pillow reported 35% less nighttime awakening and a measurable improvement in sleep efficiency compared to those using standard pillows alone. The mechanism is straightforward: reducing the compensatory muscle activity that happens when your spine isn't aligned gives your body more uninterrupted time in restorative sleep stages.

Who it's for: Chronic side sleepers who can't get comfortable with a standard pillow arrangement. Also excellent for pregnant women, people recovering from hip or shoulder surgery, and anyone with fibromyalgia or widespread joint pain who needs consistent support throughout the night.

5. The Pillow Sandwich — For Combo Sleepers

The hack: Stack a thin, soft pillow on top of a firmer, thicker pillow. Sleep on the top pillow. When you roll over to a different position, adjust by adding or removing the top layer.

Combo sleepers — people who move between side, back, and stomach positions during the night — face a unique challenge. A pillow that works for side sleeping (high loft, firm) is completely wrong for stomach sleeping (low loft, soft), and back sleeping falls somewhere in between. The standard advice to "choose a pillow for your dominant position" ignores the reality that most people shift between positions a dozen times a night.

The pillow sandwich solves this. The firm bottom pillow provides consistent support for side sleeping. The soft top pillow lets you comfortably sleep on your stomach without hyperextending your neck — the soft surface compresses enough that the effective loft drops. When you're on your back, the combination gives you medium loft that works for most body types.

The fix: The bottom layer needs to be firm and supportive. The Simba Hybrid Pillow works brilliantly here — its zoned support layers provide a stable base. The Panda Hybrid Bamboo Pillow is another strong contender with its adjustable shredded memory foam. For the top layer, a budget-friendly soft synthetic like a well-worn Silentnight Deep Sleep Pillow works perfectly because you want it to compress easily.

Who it's for: Anyone who wakes up on their stomach despite falling asleep on their side, or people who find themselves cycling through positions through the night. Also useful for restless sleepers whose pillow preference changes week to week.

The Bottom Line

If you have morning stiffness or poor sleep, before you spend money on a new pillow, try using the one you have differently for a week. The towel trick, a pillow between your knees, hugging a second pillow — these adjustments cost nothing and they work because they address the biomechanics of how your body actually sleeps, not what an advert tells you to buy.

The body pillow is the one purchase I genuinely recommend because it solves a problem that standard pillows can't address. But even then, try the other four hacks first — your current pillow might be better than you think. It's just about how you use it.

For more sleep guides, visit SleepReview.

📖 Related Articles

6 Pillow Mistakes UK Sleepers Make (And How to Fix Them) High Loft vs Low Loft Pillows — Which Is Best for You? 8 Common Pillow Questions Answered